Bioconcentration of cadmium (CD) in rohu (Labeo rohita) collected from Sealdah, Garia and Sonarpur fish market in West Bengal

The fish, meat, eggs, milk, etc. are being sold and purchased in markets every day without any knowledge of pollution threats of heavy metals in human health. To judge the pollution status, the bioconcentration of Cd in meat, offal and whole body (dry weight) of Labeo rohita (Rohu) collected from Sealdah (SDH), Garia (GRA) and Sonarpur (SNP) fish markets around Kolkata of West Bengal were analyzed from November 2016 to April 2017 by Atomic Absorption Spectrophotometer. The highest Cd content in meat and offal of Rohu was 0.882μg/g and 5.488μg/g respectively. The Cd accumulated Rohu sold in those markets were in the order of SNP>SDH>GRA. As the accumulated metal stored mainly in offal, which is often discarded before preparation of the dish, the chances of risks of the fish eaters are comparatively less. The level of this metal in fish meat was below the prescribed permissible limits, but the cumulative effect of all the heavy metals together can be harmful. So, it is the time to aware the people about the threats of pollution and to equip them to overcome future threats for their sustenance.